<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <meta name="description" content="Add billboard images, points, and markers to the scene.">
    <meta name="cesium-sandcastle-labels" content="Development">
    <title>Cesium Demo</title>
    <script type="text/javascript" src="../Sandcastle-header.js"></script>
    <script type="text/javascript" src="../../../Build/CesiumUnminified/Cesium.js" nomodule></script>
    <script type="module" src="../load-cesium-es6.js"></script>
</head>
<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
<style>
    @import url(../templates/bucket.css);
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar"></div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
    'use strict';
//Sandcastle_Begin
var viewer = new Cesium.Viewer('cesiumContainer');
var scene = viewer.scene;

function addBillboard() {
    Sandcastle.declare(addBillboard);

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    billboards.add({
        image : '../images/Cesium_Logo_overlay.png',
        position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883)
    });
}

function setBillboardProperties() {
    Sandcastle.declare(setBillboardProperties);

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    billboards.add({
        image : '../images/Cesium_Logo_overlay.png', // default: undefined
        show : true, // default
        position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
        pixelOffset : new Cesium.Cartesian2(0, -50), // default: (0, 0)
        eyeOffset : new Cesium.Cartesian3(0.0, 0.0, 0.0), // default
        horizontalOrigin : Cesium.HorizontalOrigin.CENTER, // default
        verticalOrigin : Cesium.VerticalOrigin.BOTTOM, // default: CENTER
        scale : 2.0, // default: 1.0
        color : Cesium.Color.LIME, // default: WHITE
        rotation : Cesium.Math.PI_OVER_FOUR, // default: 0.0
        alignedAxis : Cesium.Cartesian3.ZERO, // default
        width : 100, // default: undefined
        height : 25, // default: undefined
        sizeInMeters : false // default
    });
}

function changeBillboardProperties() {
    Sandcastle.declare(changeBillboardProperties);

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());

    // add() returns a Billboard object containing functions to change
    // the billboard's position and appearance.
    var b = billboards.add({
        image : '../images/Cesium_Logo_overlay.png'
    });

    b.position = Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883, 300000.0);
    b.scale = 3.0;
    b.color = new Cesium.Color(1.0, 1.0, 1.0, 0.25);
}

function sizeBillboardInMeters() {
    Sandcastle.declare(sizeBillboardInMeters);

    var center = Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883);
    var heading = Cesium.Math.toRadians(50.0);
    var pitch = Cesium.Math.toRadians(-20.0);
    var range = 100.0;
    viewer.camera.lookAt(center, new Cesium.HeadingPitchRange(heading, pitch, range));

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    billboards.add({
        image : '../images/Cesium_Logo_overlay.png',
        sizeInMeters : true,
        position : center
    });
}

function addMultipleBillboards() {
    Sandcastle.declare(addMultipleBillboards);

    var logoUrl = '../images/Cesium_Logo_overlay.png';
    var facilityUrl = '../images/facility.gif';

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    billboards.add({
        image : logoUrl,
        position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883)
    });
    billboards.add({
        image : facilityUrl,
        position : Cesium.Cartesian3.fromDegrees(-80.50, 35.14)
    });
    billboards.add({
        image : facilityUrl,
        position : Cesium.Cartesian3.fromDegrees(-80.12, 25.46)
    });
}

function scaleByDistance() {
    Sandcastle.declare(scaleByDistance);

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    billboards.add({
        image : '../images/facility.gif',
        position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
        scaleByDistance : new Cesium.NearFarScalar(1.5e2, 2.0, 1.5e7, 0.5)
    });
}

function fadeByDistance() {
    Sandcastle.declare(fadeByDistance);

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    billboards.add({
        image : '../images/Cesium_Logo_overlay.png',
        position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
        translucencyByDistance : new Cesium.NearFarScalar(1.5e2, 1.0, 1.5e7, 0.2)
    });
}

function offsetByDistance() {
    Sandcastle.declare(offsetByDistance);
    Cesium.when.all([
         Cesium.Resource.createIfNeeded('../images/Cesium_Logo_overlay.png').fetchImage(),
         Cesium.Resource.createIfNeeded('../images/facility.gif').fetchImage()
        ],
        function(images) {
            var billboards = scene.primitives.add(new Cesium.BillboardCollection());

            // As viewer zooms closer to facility billboard,
            // increase pixelOffset on CesiumLogo billboard to this height
            var facilityHeight = images[1].height;

            // colocated billboards, separate as viewer gets closer
            billboards.add({
                image : images[1],
                position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
                horizontalOrigin : Cesium.HorizontalOrigin.CENTER,
                verticalOrigin : Cesium.VerticalOrigin.BOTTOM
            });
            billboards.add({
                image : images[0],
                position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
                horizontalOrigin : Cesium.HorizontalOrigin.CENTER,
                verticalOrigin : Cesium.VerticalOrigin.BOTTOM,
                pixelOffset : new Cesium.Cartesian2(0.0, -facilityHeight),
                pixelOffsetScaleByDistance : new Cesium.NearFarScalar(1.0e3, 1.0, 1.5e6, 0.0),
                translucencyByDistance : new Cesium.NearFarScalar(1.0e3, 1.0, 1.5e6, 0.1)
            });
    });
}

function addPointBillboards() {
    Sandcastle.declare(addPointBillboards);

    // A white circle is drawn into a 2D canvas.  The canvas is used as
    // a texture for billboards, each of which applies a different color
    // and scale to change the point's appearance.
    //
    // The 2D canvas can draw much more than circles.  See:
    // https://developer.mozilla.org/en/Canvas_tutorial
    var canvas = document.createElement('canvas');
    canvas.width = 16;
    canvas.height = 16;
    var context2D = canvas.getContext('2d');
    context2D.beginPath();
    context2D.arc(8, 8, 8, 0, Cesium.Math.TWO_PI, true);
    context2D.closePath();
    context2D.fillStyle = 'rgb(255, 255, 255)';
    context2D.fill();

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    billboards.add({
        imageId : 'custom canvas point',
        image : canvas,
        position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
        color : Cesium.Color.RED,
        scale : 0.5
    });
    billboards.add({
        imageId : 'custom canvas point',
        image : canvas,
        position : Cesium.Cartesian3.fromDegrees(-80.50, 35.14),
        color : Cesium.Color.BLUE
    });
    billboards.add({
        imageId : 'custom canvas point',
        image : canvas,
        position : Cesium.Cartesian3.fromDegrees(-80.12, 25.46),
        color : Cesium.Color.LIME,
        scale : 2
    });
}

function addMarkerBillboards() {
    Sandcastle.declare(addMarkerBillboards);

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());

    // Add several billboards based on the above image in the atlas.
    billboards.add({
        image : '../images/whiteShapes.png',
        imageSubRegion : new Cesium.BoundingRectangle(49, 43, 18, 18),
        position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
        color : Cesium.Color.LIME
    });
    billboards.add({
        image : '../images/whiteShapes.png',
        imageSubRegion : new Cesium.BoundingRectangle(61, 23, 18, 18),
        position : Cesium.Cartesian3.fromDegrees(-84.0, 39.0),
        color : new Cesium.Color(0, 0.5, 1.0, 1.0)
    });
    billboards.add({
        image : '../images/whiteShapes.png',
        imageSubRegion : new Cesium.BoundingRectangle(67, 80, 14, 14),
        position : Cesium.Cartesian3.fromDegrees(-70.0, 41.0),
        color : new Cesium.Color(0.5, 0.9, 1.0, 1.0)
    });
    billboards.add({
        image : '../images/whiteShapes.png',
        imageSubRegion : new Cesium.BoundingRectangle(27, 103, 22, 22),
        position : Cesium.Cartesian3.fromDegrees(-73.0, 37.0),
        color : Cesium.Color.RED
    });
    billboards.add({
        image : '../images/whiteShapes.png',
        imageSubRegion : new Cesium.BoundingRectangle(105, 105, 18, 18),
        position : Cesium.Cartesian3.fromDegrees(-79.0, 35.0),
        color : Cesium.Color.YELLOW
    });
}

function inReferenceFrame() {
    Sandcastle.declare(inReferenceFrame);

    var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    var center = Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883);
    billboards.modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(center);

    var facilityUrl = '../images/facility.gif';

    // center
    billboards.add({
        image : facilityUrl,
        position : new Cesium.Cartesian3(0.0, 0.0, 0.0)
    });
    // east
    billboards.add({
        image : facilityUrl,
        position : new Cesium.Cartesian3(1000000.0, 0.0, 0.0)
    });
    // north
    billboards.add({
        image : facilityUrl,
        position : new Cesium.Cartesian3(0.0, 1000000.0, 0.0)
    });
    // up
    billboards.add({
        image : facilityUrl,
        position : new Cesium.Cartesian3(0.0, 0.0, 1000000.0)
    });
}

Sandcastle.addToolbarMenu([{
    text : 'Add billboard',
    onselect : function() {
        addBillboard();
        Sandcastle.highlight(addBillboard);
    }
}, {
    text : 'Set billboard properties at creation',
    onselect : function() {
        setBillboardProperties();
        Sandcastle.highlight(setBillboardProperties);
    }
}, {
    text : 'Change billboard properties',
    onselect : function() {
        changeBillboardProperties();
        Sandcastle.highlight(changeBillboardProperties);
    }
}, {
    text : 'Size billboard in meters',
    onselect : function() {
        sizeBillboardInMeters();
        Sandcastle.highlight(sizeBillboardInMeters);
    }
}, {
    text : 'Add multiple billboards',
    onselect : function() {
        addMultipleBillboards();
        Sandcastle.highlight(addMultipleBillboards);
    }
}, {
    text : 'Scale by viewer distance',
    onselect : function() {
        scaleByDistance();
        Sandcastle.highlight(scaleByDistance);
    }
}, {
    text : 'Fade by viewer distance',
    onselect : function() {
        fadeByDistance();
        Sandcastle.highlight(fadeByDistance);
    }
}, {
    text : 'Offset by viewer distance',
    onselect : function() {
        offsetByDistance();
        Sandcastle.highlight(offsetByDistance);
    }
}, {
    text : 'Add point billboards',
    onselect : function() {
        addPointBillboards();
        Sandcastle.highlight(addPointBillboards);
    }
}, {
    text : 'Add marker billboards',
    onselect : function() {
        addMarkerBillboards();
        Sandcastle.highlight(addMarkerBillboards);
    }
}, {
    text : 'Add billboards in reference frame',
    onselect : function() {
        inReferenceFrame();
        Sandcastle.highlight(inReferenceFrame);
    }
}]);

Sandcastle.reset = function () {
    scene.primitives.removeAll();
};

//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== 'undefined') {
    window.startupCalled = true;
    startup(Cesium);
}
</script>
</body>
</html>
